Comparison

iKeleton OSC vs API Zen

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iKeleton OSC

This app captures body tracking data and transmits it to other devices via OSC. It's ideal for creating multimedia content by integrating motion data with various devices. Requires an A12 Bionic processor or newer for body tracking.

Highlights
  • Body tracking data capture
  • OSC protocol transmission
  • Multimedia content creation
  • Cross-device data sharing
  • Requires A12 Bionic processor or newer
Features
Read full description

An application capturing body tracking data and sending it to other devices using OSC, a protocol for networking sound synthesizers, computers, and other multimedia devices, to create multimedia content. Note: Body tracking functionality requires an A12 Bionic processor. This is limited to the iPhone X,iPhone XR, and any newer devices.

About

API Zen

Features
Read full description

API Zen brings the convenience of HTTP API endpoint testing on the go. With its intuitive request composer and detailed response information, it helps developers test endpoints with ease. Main features • Simple and intuitive request composer and viewer • Supports headers, request parameters, request body with JSON, XML, raw input, forms with file, image attachments, multipart and binary data • Organize endpoints into workspaces and projects • Enable iCloud syncing when creating a new workspace. If syncing is disabled workspace will be created on device only. • Seamless switching between local and iCloud workspaces • Option to add custom HTTP methods per project • Detailed response information which includes headers, cookies, metrics and connection information • View raw response with syntax highlighting • Preview HTML response output as web page • View all response history • SSL validation per request • Environment group with variables per workspace with option to select different environment per request • Supports dark mode • Import/Export workspace data API Zen is free for use. The app accepts optional donations which supports the development work.

Screenshots

iKeleton OSC4 screens
API Zen4 screens

Verdict

The call

The clearest difference is price: API Zen at Free against iKeleton OSC's $4.99. API Zen also leads on update cadence (every 2 months vs every 24 months). iKeleton OSC's advantage is in-app purchases (none vs 3) and chart position (#187 vs unranked). On ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

API Zen is free to download; iKeleton OSC costs $4.99 up front. API Zen sells 3 one-off in-app purchases. iKeleton OSC asks for nothing beyond the download.

UpkeepUpdate frequency

iKeleton OSC ships an update every 24 months, API Zen every 2 months. The most recent releases landed on September 19, 2026 and September 15, 2026 respectively.

Scorecard4 real differences · 6 level
iKeleton OSC versus API Zen: the parameters behind the verdict, then further details
ParameteriKeleton OSCAPI Zen
Price$4.99Free — better
Rating5.0 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 24 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
Best chart rank#187 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size4 MB7 MB
Age rating4+4+
DeveloperGwangyu LeeJaseem Valiya Valappil

In-app purchases

None

iKeleton OSC

No in-app purchases

3 purchases

API Zen

One-time3
  • Thanks$3.99
  • Thank you$5.99
  • Thank you very much$7.99

Questions

Is iKeleton OSC free?
iKeleton OSC costs $4.99, with no in-app purchases.
Is API Zen free?
API Zen is free to download, with in-app purchases available.
Do iKeleton OSC or API Zen have ads?
Neither iKeleton OSC nor API Zen shows ads.
Which is updated more often, iKeleton OSC or API Zen?
iKeleton OSC ships an update every 24 months, and API Zen every 2 months. Most recently, iKeleton OSC was updated on September 19, 2026 and API Zen on September 15, 2026.

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